Can-cover lock



April 13 1926. 1,581,060

w. HUG

CAN COVER LOCK Filed May 8, 19;, 5

ATTORNEYS Patented Apr. 13, 1926.

" UNITED STATES WALTER HUG, MEDFOLRD, 'WISCONSIN'.

GAN-Govan Loox.

To @ZZ lwhom t may concern:

Be it known that I, VALTER HUG, a citizen of the United States, residing at Medford, in the county of lTaylor, State of VVisc-onsin, have invented certain new and useful improvements in Can-Cover Locks, of which the following is a specification.

This invention relates to a can cover lock especially adapted for use on milk cans or the like.

rl`he object of the invention resides in the provision of a can cover lock adapted to securely hold the cover to the can against accidental displacement, the lock being readily releasable when it is desired to remove the cover from the can and the lock and cover being so` constructed and organized as to facilitate t'he handling ofthe cover and themanipulation of the locking mechanism, the lock being released for the removal and application of the cover when the handle member of the cover is gripped in the ordinary way.

. l further object resides in the provision of a can cover Alock having the advantages and capacities mentioned and which is of simple and durable construction, reliable and effective in operation and easy and comparatively inexpensive to manufacture. `@ther objects and advantages reside in certain novel features of the construction, arrangement` and combination vof parts which will be hereinafter more fully described and particularly pointed out in the appended claims, reference being had to the accompanying drawings forming a part of this specification, and in which:

Figure 1 isa `view in transverse vertical section taken on the line 2-2 yof Figure 2, the cover plate or'top `plate being sho-wn in position, l

Figure 2 is a view in top plan vwith the top plate or cover plate removed, and

F igure. 3 is a` view in transverse vertical section on the line3--3 of Figure 1.

Referring to the drawing, the numeral 1 designates a milk can having a cylindrical neck 2, the upper -end of which is flared upwardly, as at 3in the usual way.

A cover designated generally at 4, is provided and has a cylindrical body portion 5,

rthe lower vend of'which is closed by a plate 6.

The upper end of the cylindrical body portion has integrally formed therewith a Haring extension 7 `which termina-tes in an outwardly directed flange. In assembly` the Application filed May 8, 1925. Serial No. 28,883..

cover is inserted in the top of the can 1 so that its cylindrical body portion 5 is snugly fitted in the' neck 3, its Haring portion 7` is engaged with the flaring portion 3 ofthe can and its flange 8 rests on the beaded edge 3a of the flaring portion 3. y

A combination handle member and housf ing, designated generallyatlO, isprovided and extends transversely ofthe cover. The combination handle member and housing 10 .has a rounded undersidefll shaped to be conveniently gripped and vertical side walls 12. At their ends the side walls 12 have attaching lugs 13 which are designed to lit up against. the flaring extension 7 of the cover and to be secured the-reto by welding, brazing, riveting, or the like. As shown in the drawings the combination housing and handle member is located entirely within the confines of the cover. Along their upper edges the side walls 12 of the housing are formed with inturned horizontal flanges 14 and at their ends these side walls 12 have upstruck lips 15.A horizontal plate 16 is pr ovided and' is fastened4 to the flanges 14` of the side walls 12 at their centers.' A top or cover plate 17 is provided and has down turned flanges 18 which rest on the flanges 14 of the side walls. The flanges '18 terminate at points adjacent to but spacedfrom the ends'of-the plates 17 to provide the spaces necessary to permit thelugsor lips 15 to engage the underside of the cover' plate 17 at its ends. Screws 19 are yprovided for fastening the cover plate17 in position, the screws coacting with the cover plate and with the plate 16. Since the plate 16 is fastened to the flanges 14 of the side walls 12 the cover plate is indirectly secured to the side walls.

On each side of the center of thehousing and'handle member 10a pair of transversely disposed plate-like bearing members 20 are provided. In the bearing members y2O bolts 21 are slidably fitted. The router ends of the bolts may be projected through Vopenings 22 provided in theV cover and openings 23 provided in the jcan, and when projected the bolts lock thecover tothe can. When retracted the bolts are'contained entirely within the cover and permit the cover to be f lIn order to provide for the yconvenient release or retraction of the bolts simultane ously with the lifting'of the cover or with its manipulation, an elongated andv curved operating plate 30 isprovided and is shaped to be conveniently 'grasped by the hand and to fit snugly and flush up` against the underf j side -of the casing ywhen moved to position to release the bolts.v kA hollow ortubular post 31 is integrally formed withl the operating plate 30 and is slidably fitted inl a sleeve bearing 32 ydisposed, within the housing 10 and connected to the bottom wall ofthe housing. Bell crank levers, designated generally at '33, are provided, there kbeing one bell crank lever for Aeach bolt.

The bell crank levers are ixe'd'on the rock shafts 34 rotatably mounted in bearings/provided therefor inthe side walls 12 of the housing and handle member 10. Each bell crank Vlever 33 has an armV 35 Apivotally connected by a pivot pin 36 to the slotted end of its bolt 21 andeach `bell cranklever also has an arm 37 accommodated in' an elongated slot 38 formed' in the sleeve bearing 32 'and through a slot 39 formed in the plate 16 and operating in the slot 40 provided inthe tubular postA 31. With this arrangement when the combined housing and handle member 10` isgrasped in the hand, as it conveniently may be, the .operating plate 30 is grasped by the fingers so that when the grip is tightened the plate 3() will be brought up flush against the underside of the member 10. Thismovement of the plate raises the lpost 31 in its sleeve bearing 32 and the upward movement of the post 31 is transmitted through the bell crank levers 33 to the bolts 21 since the lower walls of the slots 40 engage the arms 37 of the bell crank levers to swing them and their rock shafts in such a way as to cause the arms 35 which are pivotally connected to the bolts to swing inwardly and consequently cause the bolts 21fto slide inwardly. In lieu, of an ordinary pivotal connection between the arms -35 land the bolts 21, a pin and slot connection may be provided if found desirable, but since vthe arms 35 swing through a small arc it is believed thata pivotal connection will be suiiicient. Y

I claim: c l 1. In a can cover lock, a combined handle member and housing located within the cover, extending transversely thereof and secured at its ends to diametric'ally op- The springs 24 are tenposed portionsfof the cover, said combined handle member `and housing being shaped to beY gripped by the hand, a pair of bolts within the h ousing, means for mounting the lbolts for operative movement, the bolts being `projectible and being adapted to lock the cover in position and being retractible to "permit of release of the cover, springs for projecting the bolts, means for retracting the bolts comprising anrelongated andY rigid operating plate designed tofbe gripped with the vcombined/handle and vhousing in applying and removing the cover and shaped to snugly fit the underside of the housing when pulled upwardly therreagainst, and means for interconnecting the plate and housing )and also the plate and bolts for Yconstraining the plate to partake of rectilinear vmovement back and forth toward and away from the combined handle member and housing and for positively transmittingfthe movement of the plate to the bolts. Y Y

2.- In a can cover lock, a combined handle member and housing located within the cover, extending transverselyA thereof and secured at its ends to'rdiametrically opposed portions of the cover, saidv combinedoperating handle member and` housing, having itsA lower portion rounded and being shaped to be gripped -by the hand, aA pair,A of bolts within.V the housing, means formounting the bolts for sliding movement, the 'bolts being projectible and being adapted'to lock the cover in positionand being retractible to permit of release of the cover, springs'for projecting thebolts, meansfor retracting the bolts and comprising an elongated and curved operating platel designed to lsnugly fit the under side of the housing when pulled upwardly, and motion transmission means between the plate and the bolts comprising a tubular post connected withthe operating plate, a bearing sleeve secured to the housing and disposed therein, said post being slidably fittedin the sleeve, bell cranklevers mounted within the housing,-e'a ch bell crank lever having an yarm connected to its bolt and 'having another arm with which the post co-acts, thepost and its bearing sleeve being slotted to engage and accommodate the arms of the bell crank levers lwith which they Vcofact.

3. In a'Y can cover lock, -a combined handle member and housing located within the cover, extendingtra'nsversely thereof and secured atits ends to diametrically opposed portions of the cover, said combined operating handle member and housing having its 'lower portion rounded and being shaped to be gripped by hand, a pair of bolts within the housing, means for mounting the bolts for sliding movement, the bolts being proj ectible and being adapted to lock thecover in position and being retractible to permit of release of the cover, springs for projecting the bolts, means for retracting the bolts and comprising an elongated and curved operating plate designed to snugly fit the underside of the housing when pulled upwardly, motion transmission means between the plate and the bolts1 comprising a tubular post connected with4 the operating plate, a bearing sleeve secured to the housing and disposed therein, said post being slidably fitted in the sleeve, bell crank levers mounted within the housing, each bell crank lever having an arm connected to its bolt andhaving another arm with which the post co-acts, the post and its bearing sleeve being slotted to engage and accommodate the arms of the bell crank levers with which they co-act, said housing having a removable top plate to facilitate access to the locking mechanism.

4. In a can cover lock, a combined handle member and housing located within the cover, extending transversely thereof and secured at its ends to opposite portions ofthe cover, said combined operating handle member and housing having its lower portion rounded and being shaped to be gripped by the hand, a pair of bolts within the housing, means lor'mountng the bolts for operative movement, the bolts being projectible to lock theI cover in position and retractible to permit of release of the cover, springs for pro- `]ect1ng the bolts and means for retracting the bolts comprising an elongated curved and rigid operating plate designedto snugly lit the underside of the housing when pulled upwardly, and motion transmission means between the plate and bolts comprising a post connected to the plates and operating in the housing, and levers 'ulerumed in the housing and having arms connected to the post and arms connected to the bolts.

WALTER HUG. 

